Things you will need:
1. An egg. Go buy an egg for good reference images. See how egg cracks. You can also find some great reference images from Flickr.

2. 3ds max 7 or higher

3. Cgray Random Wire Color maxscript created by Chris Gray. Click HERE to download. This will help you to randomly assign wireframe color to your egg shell fragments.

4. Bobo’s maxscript. Very simple maxscript you could just make a copy from his website.
Note: Please note you should rename the Box in string of "global ChunksArray = $Box* as array" if your geometry debris has other name than box. For example, you have Object01, Object02...etc, your modified should looks like so "global ChunksArray = $Object* as array"

5. 3D Aliens Glu3D plugin. We use this plugin to create fluid mesh. The PWrapper in Glu3D is essential the same function as 3dsmax's Blobmesh, but with more optimize performance.